UMX files are used in the original UT to store synthesized music. This unlike the ogg format that UT2004 uses which is digitized. The UMX format is actually derived from the mod/tracker files of the Amiga and importable formats in UnrealEd include s3m and it.
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2022-11-18T08:59:03.117901Z
2004-11-15T13:54:13Z
Fearless
Quick explanation of what a UMX file is
https://wiki.beyondunreal.com/Legacy:UMX File
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